Green Phantom Plecostomus - Hemiancistrus Subviridis Fish Profile & Care Guide
Introduction
As juveniles, Green Phantom Plecos (Hemiancistrus Subviridis) are peaceful, and they are perfect for peaceful community aquariums. However, it is crucial to note that as they grow, they become more territorial and aggressive, particularly the males. To ensure their well-being, it is best to house Green Phantom Plecos in a tank with medium to large fish that swim in different areas of the tank. For example, suitable tankmates within the mid-level region of the aquarium could incorporate Silver Dollars, Flagtails, and larger species of Hyphessobrycon. In scenarios where multiple Green Phantom Plecos are to be housed or when cohabiting with other Loricariid species, careful attention to the aquarium's spatial dimensions is imperative. Adequate space and the provision of ample visual barriers throughout the decor are essential aspects to address, as these fish have a propensity for territorial behaviour.
The Green Phantom Pleco finds its ideal habitat within spacious and well-established soft water aquarium setups. In their native habitat, they inhabit the crevices and gaps between granite rocks in swiftly flowing waters. This ecological context mandates the presence of a substantial water current and a robust oxygenation level in the domestic aquarium, a factor of particular significance when maintaining these specimens at the upper end of their preferred temperature range. The creation of an environment enriched with abundant rockwork and strategically positioned shaded cavities is essential to provide secure hiding places for the fish. It is advisable to ensure that areas of stronger current intersect these shelters, replicating their natural habitation.
While not obligatory, the inclusion of bogwood can enhance the visual aesthetics of the tank. Notably, larger Green Phantom Plecos can inadvertently uproot aquatic plants. Should such plants be desired, selecting hardy varieties like Anubias or Java Fern that can be affixed to the decor is recommended. Given the notable waste production common among Loricariid species, a robust filtration system is highly advised to maintain optimal water quality. As a species that requires a significant weekly water change, they are intolerant of organic waste and need pristine water conditions. Therefore, advanced fishkeepers with ample experience are best suited to provide adequate care for this species.
Green Phantom Plecos exhibit a stunning colouration with a body that ranges from dark yellow to light olive green, covered with yellow spots from the midsection to the head. Their dorsal, pectoral, and ventral fins also display yellow highlights. Interestingly, their stomachs are transparent. The body colouration, as well as the size and distribution of spots, exhibits variation contingent upon the location of the collection. Notably, the darker variants have been procured from the northern reaches of the range, with the fish exhibiting a gradual lightening in colouration as their habitat extends southward along the course of the river.
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Photos
Sexual Dimorphism
Differentiating between male and female Green Phantom Plecos is typically a straightforward process. Generally, adult males will have a more significant and broader head with slightly flatter features. They will also have longer pectoral fins and appear hairier than females, with more prominent dermal teeth. Furthermore, males tend to be somewhat larger than their female counterparts.
Quick Facts
| Scientific Name | Hemiancistrus Subviridis |
|---|---|
| Year Described | 2005 |
| Other Names | Lemon Spotted Green Pleco |
| Kingdom | Animalia |
| Classification | Actinopterygii |
| Order | Siluriformes |
| Family | Loricariidae |
| Genus | Hemiancistrus |
| Origins | Venezuela Colombia |
| Approx Max Size | 15 cm |
| Temperament | Peaceful |
| Aquarium Level | Bottom |
| Difficulty | Advanced |
| Shoaling | No |
| Best kept as | Groups 5+ |
| Diet & Feeding | Omnivore |
| Reproduction | Egg Depositor |
| Average Lifespan | Up to 8 Years |
Water Parameters
| Water Type | Freshwater |
|---|---|
| pH | 5.5 - 7.5 |
| GH | 2 - 10 |
| TDS | 18 - 179 |
| ℉ | 78 - 86 |
|---|---|
| ℃ | 25 - 30 |
Natural Habitat
The Green Phantom Pleco is a unique and striking species that originates from the Rio Ventauri and the Rio Orinoco in Amazonas State, Venezuela, and Columbia. In their natural habitat, these Plecos can be found in fast-moving and highly oxygenated waters that are warm and enriched with rocky areas in rivers. The rocky areas are typically found between boulders and granite bedrock, which provide hiding places for these fish. Their natural environment is a wonder to behold, and recreating it in a well-designed aquarium will offer a spectacular sight.
Breeding
The Green Phantom Pleco can be successfully bred in an aquarium environment. During the breeding process, the male will seduce the female into his cave, where the eggs are laid and fertilized. The male then stands guard at the entrance of the cave to protect the 30 to 45 eggs until they hatch, which usually takes between 3 to 4 days.
Once hatched, the fry remains in the cave for approximately ten days while they absorb their yolk sac, after which they begin to explore their surroundings in search of food. To ensure the healthy growth of the fry, it is essential to provide them with a diet of infusoria, crushed flake, bloodworm, algae wafers, and blanched vegetables such as squash and zucchini.
Success in breeding Green Phantom Plecos relies heavily on maintaining a well-oxygenated, spacious tank, pristine water conditions, and a high protein diet.
Diet & Feeding
In the domestic setting, the Green Phantom Pleco subsists mainly on algae and residual foods. To ensure adequate nutrition, supplement their diet with commercial aquarium foods formulated for bottom feeders, such as sinking wafers and pellets. Additionally, meaty foods such as bloodworms, daphnia, and brine shrimp, as well as blanched vegetables like spinach and courgette, are also relished by this species and should be included in their regular feedings.
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Published: 22 Oct 2020
Last Updated: 18 Aug 2023